Allow to specify buffer name from parameters in effects

diff --git a/simgear/scene/material/TextureBuilder.cxx b/simgear/scene/material/TextureBuilder.cxx
index 5ee5836a38fd786eeaab8bb4d6e2b80ef252cccd..a361fee1ab8e8cc5ebb508a7cfef3e14be14169f 100644 (file)
--- a/simgear/scene/material/TextureBuilder.cxx
+++ b/simgear/scene/material/TextureBuilder.cxx
@@ -849,7 +849,11 @@ Texture* GBufferBuilder::build(Effect* effect, Pass* pass, const SGPropertyNode*
     } else {
         SG_LOG(SG_INPUT, SG_ALERT, "no texture unit");
     }
-    buffer = prop->getStringValue("name");
+    const SGPropertyNode* nameProp = getEffectPropertyChild(effect, prop,
+                                                            "name");
+    if (!nameProp)
+        return 0;
+    buffer = nameProp->getStringValue();
 
     pass->setBufferUnit( unit, buffer );